Instead of dynamically allocating APList, make it a member of struct
airo_info to always track state of APList_rid.
This simplifies suspend/resume and allows removal of readAPListRid.
Signed-off-by: Ondrej Zary <[email protected]>
---
drivers/net/wireless/airo.c | 57 +++++++++++++++----------------------------
1 file changed, 19 insertions(+), 38 deletions(-)
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 8ae838d..4ef2f98 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -1231,7 +1231,7 @@ struct airo_info {
dma_addr_t shared_dma;
pm_message_t power;
SsidRid *SSID;
- APListRid *APList;
+ APListRid APList;
#define PCI_SHARED_LEN 2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE
char proc_name[IFNAMSIZ];
@@ -1848,11 +1848,6 @@ static int readStatusRid(struct airo_info *ai, StatusRid *statr, int lock)
return PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr), lock);
}
-static int readAPListRid(struct airo_info *ai, APListRid *aplr)
-{
- return PC4500_readrid(ai, RID_APLIST, aplr, sizeof(*aplr), 1);
-}
-
static int writeAPListRid(struct airo_info *ai, APListRid *aplr, int lock)
{
return PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr), lock);
@@ -2413,7 +2408,6 @@ void stop_airo_card( struct net_device *dev, int freeres )
kfree(ai->flash);
kfree(ai->rssi);
- kfree(ai->APList);
kfree(ai->SSID);
if (freeres) {
/* PCMCIA frees this stuff, so only for PCI and ISA */
@@ -2809,6 +2803,7 @@ static struct net_device *_init_airo_card( unsigned short irq, int port,
init_waitqueue_head (&ai->thr_wait);
ai->tfm = NULL;
add_airo_dev(ai);
+ ai->APList.len = cpu_to_le16(sizeof(struct APListRid));
if (airo_networks_allocate (ai))
goto err_out_free;
@@ -3852,8 +3847,6 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
tdsRssiRid rssi_rid;
CapabilityRid cap_rid;
- kfree(ai->APList);
- ai->APList = NULL;
kfree(ai->SSID);
ai->SSID = NULL;
// general configuration (read/modify/write)
@@ -5130,31 +5123,31 @@ static void proc_APList_on_close( struct inode *inode, struct file *file ) {
struct proc_data *data = file->private_data;
struct net_device *dev = PDE_DATA(inode);
struct airo_info *ai = dev->ml_priv;
- APListRid APList_rid;
+ APListRid *APList_rid = &ai->APList;
int i;
if ( !data->writelen ) return;
- memset( &APList_rid, 0, sizeof(APList_rid) );
- APList_rid.len = cpu_to_le16(sizeof(APList_rid));
+ memset(APList_rid, 0, sizeof(*APList_rid));
+ APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
for( i = 0; i < 4 && data->writelen >= (i+1)*6*3; i++ ) {
int j;
for( j = 0; j < 6*3 && data->wbuffer[j+i*6*3]; j++ ) {
switch(j%3) {
case 0:
- APList_rid.ap[i][j/3]=
+ APList_rid->ap[i][j/3]=
hex_to_bin(data->wbuffer[j+i*6*3])<<4;
break;
case 1:
- APList_rid.ap[i][j/3]|=
+ APList_rid->ap[i][j/3]|=
hex_to_bin(data->wbuffer[j+i*6*3]);
break;
}
}
}
disable_MAC(ai, 1);
- writeAPListRid(ai, &APList_rid, 1);
+ writeAPListRid(ai, APList_rid, 1);
enable_MAC(ai, 1);
}
@@ -5408,7 +5401,7 @@ static int proc_APList_open( struct inode *inode, struct file *file ) {
struct airo_info *ai = dev->ml_priv;
int i;
char *ptr;
- APListRid APList_rid;
+ APListRid *APList_rid = &ai->APList;
if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
return -ENOMEM;
@@ -5426,13 +5419,12 @@ static int proc_APList_open( struct inode *inode, struct file *file ) {
}
data->on_close = proc_APList_on_close;
- readAPListRid(ai, &APList_rid);
ptr = data->rbuffer;
for( i = 0; i < 4; i++ ) {
// We end when we find a zero MAC
- if ( !*(int*)APList_rid.ap[i] &&
- !*(int*)&APList_rid.ap[i][2]) break;
- ptr += sprintf(ptr, "%pM\n", APList_rid.ap[i]);
+ if ( !*(int*)APList_rid->ap[i] &&
+ !*(int*)&APList_rid->ap[i][2]) break;
+ ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
}
if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
@@ -5596,15 +5588,10 @@ static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state)
Cmd cmd;
Resp rsp;
- if (!ai->APList)
- ai->APList = kmalloc(sizeof(APListRid), GFP_KERNEL);
- if (!ai->APList)
- return -ENOMEM;
if (!ai->SSID)
ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
if (!ai->SSID)
return -ENOMEM;
- readAPListRid(ai, ai->APList);
readSsidRid(ai, ai->SSID);
memset(&cmd, 0, sizeof(cmd));
/* the lock will be released at the end of the resume callback */
@@ -5652,11 +5639,7 @@ static int airo_pci_resume(struct pci_dev *pdev)
kfree(ai->SSID);
ai->SSID = NULL;
}
- if (ai->APList) {
- writeAPListRid(ai, ai->APList, 0);
- kfree(ai->APList);
- ai->APList = NULL;
- }
+ writeAPListRid(ai, &ai->APList, 0);
writeConfigRid(ai, 0);
enable_MAC(ai, 0);
ai->power = PMSG_ON;
@@ -5954,7 +5937,7 @@ static int airo_set_wap(struct net_device *dev,
struct airo_info *local = dev->ml_priv;
Cmd cmd;
Resp rsp;
- APListRid APList_rid;
+ APListRid *APList_rid = &local->APList;
if (awrq->sa_family != ARPHRD_ETHER)
return -EINVAL;
@@ -5967,11 +5950,11 @@ static int airo_set_wap(struct net_device *dev,
issuecommand(local, &cmd, &rsp);
up(&local->sem);
} else {
- memset(&APList_rid, 0, sizeof(APList_rid));
- APList_rid.len = cpu_to_le16(sizeof(APList_rid));
- memcpy(APList_rid.ap[0], awrq->sa_data, ETH_ALEN);
+ memset(APList_rid, 0, sizeof(*APList_rid));
+ APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
+ memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
disable_MAC(local, 1);
- writeAPListRid(local, &APList_rid, 1);
+ writeAPListRid(local, APList_rid, 1);
enable_MAC(local, 1);
}
return 0;
@@ -7505,10 +7488,8 @@ static int airo_config_commit(struct net_device *dev,
* parameters. It's now time to commit them in the card */
disable_MAC(local, 1);
if (test_bit (FLAG_RESET, &local->flags)) {
- APListRid APList_rid;
SsidRid SSID_rid;
- readAPListRid(local, &APList_rid);
readSsidRid(local, &SSID_rid);
if (test_bit(FLAG_MPI,&local->flags))
setup_card(local, dev->dev_addr, 1 );
@@ -7516,7 +7497,7 @@ static int airo_config_commit(struct net_device *dev,
reset_airo_card(dev);
disable_MAC(local, 1);
writeSsidRid(local, &SSID_rid, 1);
- writeAPListRid(local, &APList_rid, 1);
+ writeAPListRid(local, &local->APList, 1);
}
if (down_interruptible(&local->sem))
return -ERESTARTSYS;
--
Ondrej Zary
SIOCSIWAP (airo_set_wap) affects scan: only the AP specified by
SIOCSIWAP is present in scan results.
This makes NetworkManager work for the first time but then unable to
find any other APs.
Clear APList before starting scan and set it back after scan completes
to work-around the problem.
To avoid losing packets during scan, modify disable_MAC() to omit
netif_carrier_off() call when lock == 2.
Signed-off-by: Ondrej Zary <[email protected]>
---
drivers/net/wireless/airo.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 4ef2f98..17c40f0 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -3037,6 +3037,11 @@ static void airo_process_scan_results (struct airo_info *ai) {
}
out:
+ /* write APList back (we cleared it in airo_set_scan) */
+ disable_MAC(ai, 2);
+ writeAPListRid(ai, &ai->APList, 0);
+ enable_MAC(ai, 0);
+
ai->scan_timeout = 0;
clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
up(&ai->sem);
@@ -3608,17 +3613,18 @@ static void disable_MAC( struct airo_info *ai, int lock ) {
Cmd cmd;
Resp rsp;
- if (lock && down_interruptible(&ai->sem))
+ if (lock == 1 && down_interruptible(&ai->sem))
return;
if (test_bit(FLAG_ENABLED, &ai->flags)) {
- netif_carrier_off(ai->dev);
+ if (lock != 2) /* lock == 2 means don't disable carrier */
+ netif_carrier_off(ai->dev);
memset(&cmd, 0, sizeof(cmd));
cmd.cmd = MAC_DISABLE; // disable in case already enabled
issuecommand(ai, &cmd, &rsp);
clear_bit(FLAG_ENABLED, &ai->flags);
}
- if (lock)
+ if (lock == 1)
up(&ai->sem);
}
@@ -7216,6 +7222,7 @@ static int airo_set_scan(struct net_device *dev,
Cmd cmd;
Resp rsp;
int wake = 0;
+ APListRid APList_rid_empty;
/* Note : you may have realised that, as this is a SET operation,
* this is privileged and therefore a normal user can't
@@ -7233,6 +7240,13 @@ static int airo_set_scan(struct net_device *dev,
if (ai->scan_timeout > 0)
goto out;
+ /* Clear APList as it affects scan results */
+ memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
+ APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
+ disable_MAC(ai, 2);
+ writeAPListRid(ai, &APList_rid_empty, 0);
+ enable_MAC(ai, 0);
+
/* Initiate a scan command */
ai->scan_timeout = RUN_AT(3*HZ);
memset(&cmd, 0, sizeof(cmd));
--
Ondrej Zary
> Instead of dynamically allocating APList, make it a member of struct
> airo_info to always track state of APList_rid.
> This simplifies suspend/resume and allows removal of readAPListRid.
>
> Signed-off-by: Ondrej Zary <[email protected]>
Thanks, 2 patches applied to wireless-drivers-next.git:
f675f93a797a airo: Track APList_rid in struct airo_info
dae0412d0caa airo: fix scan after SIOCSIWAP (airo_set_wap)
Kalle Valo